Where Can I Buy Naseptin

in vitro fertilization, ethical issues. Principles of bioethics

In vitro fertilization is the combination of sperm and eggs in an artificial environment with In order to achieve conception. Once explained the usual technique of IVF (not a nonexistent ideal case), we able to make ethical judgments.

is usually used the following procedure: First, after selection of couples who wish to undergo the technique, and after rejecting those with little chance of success, we proceed to the stimulation hormone from the ovaries of women; it, instead of producing a mature egg that month, produces several. Normally, you get between 4 and 10 eggs, which are extracted from the woman through ultrasound-controlled puncture, always annoying and not quite free from hazards.

then husband's semen is achieved (usually by masturbation), and it is to acquire fertilizing capacity. Fertilize all eggs obtained after as, m hile these are difficult to preserve, young embryos can be frozen and stored at low temperature. Then, these embryos were observed under a microscope, which show an abnormal appearance (irregular or divisions, blastomere damage, etc.) Are destroyed. In the best-looking take three, which are transferred to the woman's uterus through a special cannula , hoping they are implanted in the uterine cavity and thus the desired pregnancy happens. Other (so-called "spare embryos") stored frozen pending subsequent use.

three embryos were transferred because the chances of pregnancy increase with the num ber embryos transferred. However, do not transfer more than three to avoid risk risks of a high multiple birth pregnancy, the risk of premature birth, and the danger that the technique is not iga their goal, a living child for the couple. There is now a general consensus transfer no more than three embryos em.

The problem with this is who asks what about all those embryos s " in stock? Do you throw? "Are used as cosmetics? "Are reimplanted in another woman? Do you use for testing? and if all this, is it permissible to use embryos for this purpose or other? are they are simple cells or something else?

To better understand this process here you can see a good video that d writes the process of obtaining embryonic stem cells from in vitro fertilization performed in the laboratory. Here will note a micromanipulation sperm to fertilize eggs and finally here embryo transfer to the uterus.

The next picture also illustrates the process:

Vote in my poll!